722730163278 has 16 divisors (see below), whose sum is σ = 1480715456976. Its totient is φ = 235034199360.

The previous prime is 722730163273. The next prime is 722730163279. The reversal of 722730163278 is 872361037227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722730163273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468963501 + ... + 1468963992.

It is an arithmetic number, because the mean of its divisors is an integer number (92544716061).

Almost surely, 2^722730163278 is an apocalyptic number.

722730163278 is an abundant number, since it is smaller than the sum of its proper divisors (757985293698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722730163278 is a wasteful number, since it uses less digits than its factorization.

722730163278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937927539.

The product of its (nonzero) digits is 1185408, while the sum is 48.

The spelling of 722730163278 in words is "seven hundred twenty-two billion, seven hundred thirty million, one hundred sixty-three thousand, two hundred seventy-eight".